A threatened species is one that is:
A) In immediate danger of extinction.
B) At risk of extinction since its members are low in number.
C) Not at risk even if its members are low in number.
D) At great risk since it only exists in zoos or marine parks.
E) Within a few years of disappearing forever.
Correct Answer:
Verified
Q20: PCBs are characterized by being:
A)Persistent.
B)Easily biodegradable.
C)Radioactive.
D)Responsible for
Q21: Efforts to restore kelp forests include:
A)Transplantation of
Q22: Heavy metals include all of the following
Q23: Which of the following is not true
Q24: Mercury toxicity has been directly linked with
Q26: Chlorinated hydrocarbon pesticides would be likely to
Q27: Introduced species are known to be transported
Q28: The Steller sea cow was brought to
Q29: Artificial reefs are known to:
A)Improve fishing.
B)Increase pollution.
C)Increase
Q30: One of the following is known to
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